What you’re talking about is moving the Overton Window to the left. You’re right; that ISN’T rocket science. Unfortunately, that’s caused nothing but negative results for American ‘progressives,’ and has in fact lead to the election of Donald Trump.
Think about it. The left moved so far ‘left’ in America, that a huge number of people panicked and were willing to vote for ANYONE who they thought might be able to pull the Overton Window back out of la-la land. They would have voted for Vlad the Impaler if they had no other choice.
Anyone can make wild conjecture and supply no logical reasoning or empirical evidence to support it. I’m waiting to be impressed.
Back around the time when people started chanting ‘What do we want? Dead Cops!’ in the streets in when Trump voters made that decision.
It’s sadly predictable that you can blame apparently triggered conservatives for voting Trump out of spite against protestors exercising their First Amendment right, but you fall short of getting to why those protestors, themselves, were protesting. By your logic, I could say that if cops hadn’t shot any innocent people in the last few years, Trump wouldn’t have been elected, because nobody would have been out protesting cops.
Regardless, I would say Ted Cruz’s heroic phone banking efforts played a bigger role, and, even that was a drop in the bucket, because Trump’s election had little to do with either Trump or protestors, and more to do with how bad of a candidate Clinton was. While you may think people on the far left will vote for Vlad the Impaler, that they wouldn’t even vote for Clinton shows that you’ve missed the mark.