No other countries recognized CA as a country. The Republic Of Texas had foreign relations with England and France, to name a couple - and was recognized as a sovereign nation by many others.
As for the rest of your post, you've obviously never been to Texas, or you'd realize just how wrong you are - as I used to be when I lived in the People's Republik of Kaleephorneeyah. I might also remind you that we 1) have more oil than you do, 2) have more guns than you do, and 3) make a large part of your electricity. Would you like rolling blackouts to return to your fly-spotted state?
I've driven across your POS, flew one of my nephews belongings to Houston when he left the Navy and went to work flying for Delta, flew his brother to Beeville when he entered flight training for the Navy, picked up packages that were missed in El Paso and flew them back to Burbank, and usually stopped for fuel at Marble Falls when flying south east. You couldn't pay me to live there. I'll stay right here in California where my family has been for over 200 years.