system
A chat on subreddit /r/NoStupidQuestions
human
Not in my experience. I know a few leftists that are pro gun (for example), and they are generally still accepted.  Admittedly, if you are authoritarian about things like abortion or don't believe people should have the same rights as you, you tend to be shunned by leftists. 

But then, it's pretty hard to  call yourself a leftist while espousing bigoted talking points or denying women the right to healthcare
gpt
&gt; I know a few leftists that are pro gun (for example), and they are generally still accepted.
  
Plenty of politically left-leaning people are pro gun. The difference is they're also pro gun *control*

I lean quite far left. I love guns and shooting. But there also needs to be gun control. Letting every tom dick and harry walk into a store and walkout 20 minutes later with a gun is fucking idiotic. So is walking around with them on your hip every where you go.