When underhanded tactics are used, such as disrupting Central Committee Meetings to embarrass leadership over trivial matters, I disagree with it.
When they discuss and announce how to infiltrate the party, act like a Republican and use the party resources, while ensuring they give nothing back to the party, I disagree with it.
When they demand one of their candidates be supported by the party, yet openly oppose other party candidates, I disagree with it.
That is neither “Democracy” nor “representation by the Republic.”
Well, that happens all the time - Democrats infiltrating the Republican convention, and all aspect of them. What you are angry about (and me also) is that the immoral aspects of the parties. while I can understand your anger with their actions, it is not illegal (just immoral) and it is a part of our Democracy. Really, if they can dissuade us from our platform or beliefs, we or the Republicans should not be there anyway.
It really does get down to beliefs - if any of their tactics prevail, we are lost anyway - aren’t we?