I never said that slavery wasn't one of the causes...NOW...let's look at some parts you overlooked:
"By the disloyalty of the Northern States and their citizens and the imbecility of the Federal Government, infamous combinations of incendiaries and outlaws have been permitted in those States and the common territory of Kansas to trample upon the federal laws, to war upon the lives and property of Southern citizens in that territory, and finally, by violence and mob law to usurp the possession of the same as exclusively the property of the Northern States.
The Federal Government, while but partially under the control of these our unnatural and sectional enemies, has for years almost entirely failed to protect the lives and property of the people of Texas against the Indian savages on our border, and more recently against the murderous forays of banditti from the neighboring territory of Mexico; and when our State government has expended large amounts for such purpose, the Federal Government has refused reimbursement therefor, thus rendering our condition more insecure and harassing than it was during the existence of the Republic of Texas.
These and other wrongs we have patiently borne in the vain hope that a returning sense of justice and humanity would induce a different course of administration"
and AGAIN:
"The States of Maine, Vermont, New Hampshire, Connecticut, Rhode Island, Massachusetts, New York, Pennsylvania, Ohio, Wisconsin, Michigan and Iowa, by solemn legislative enactments, have deliberately, directly or indirectly violated the 3rd clause of the 2nd section of the 4th article of the federal constitution, and laws passed in pursuance thereof; thereby annulling a material provision of the compact, designed by its framers to perpetuate amity between the members of the confederacy and to secure the rights of the slave-holding States in their domestic institutions--a provision founded in justice and wisdom, and without the enforcement of which the compact fails to accomplish the object of its creation. Some of those States have imposed high fines and degrading penalties upon any of their citizens or officers who may carry out in good faith that provision of the compact, or the federal laws enacted in accordance therewith."
So let's summarize these OTHER grievances:
1. The Federal Government allowed Kansas Jayhawkers to attack Southern citizens
2. Did not protect the citizens of Texas from Mexicans & savage Indians, and refused to re-emburse the state government for the cost of doing what the US Government was supposed to be doing.
3. Refused to enforce the fugitive slave laws.
4. Allowed Abolitionist to stir up insurrections in the state.....
Seems that there were other reasons as well as slavery.
Apparently the Feds weren't living up to their obligations........
In other words, Yankees had broken their promise and the contract. The seceding states were perfectly justified for abandoning a partnership that was violated by yankees.
Just how did the Federal government allow this? Or more precisely, how were they supposed to have prevented either the Jayhawkers, or the Border Ruffians for that matter, from attacking anyone?
2. Did not protect the citizens of Texas from Mexicans & savage Indians, and refused to re-emburse the state government for the cost of doing what the US Government was supposed to be doing.
Congress appropriates money. For virtually all the time that Texas was a state the Congress was dominated by southern representatives. If the government failed to send enough troops to Texas, either because they didn'y have them or didn't appropriate the money to ensure protection then weren't the southern leadership in Congress primarily to blame?
3. Refused to enforce the fugitive slave laws.
In what way did the Federal government refuse to enfore the Fugitive Slave Laws?
4. Allowed Abolitionist to stir up insurrections in the state.....
If Texas didn't want abolitionists stirring up insurrections, they wasn't it the duty of the stat authorities to prevent it? Slave revolt was a local issue, wasn't it?
1. The Federal Government allowed Kansas Jayhawkers to attack Southern citizens
And what was the conflict in Kansas all about? It was abolitionists vs. slave-holding interests. So, slavery again.
2. Did not protect the citizens of Texas from Mexicans & savage Indians, and refused to re-emburse the state government for the cost of doing what the US Government was supposed to be doing.
You quote the first mention of this particular grievance, but not the second, in which the Texans say, "They have refused to vote appropriations for protecting Texas against ruthless savages, for the sole reason that she is a slave-holding State." So, once again, slavery is identified as the factor leading to this problem.
Refused to enforce the fugitive slave laws.
Slavery again.
4. Allowed Abolitionist to stir up insurrections in the state.....
And slavery again. In fact, there isn't one issue that Texas brings up in the document that isn't either explicitly about slavery or can't be traced back to it.