As left people gain political maturity, they understand that those in power will not give up their power willingly, so force is required.
As a liberal person I am suspicious of any liberal who does not believe in gun rights, and I am even more suspicious of a liberal person who does not believe in unions, which is the 2nd amendment of labor rights. Neither the 2nd amendment nor unions can be used for their purpose within the bounds of the law.
Believing in human rights means believing in defending human rights with force, otherwise what is to stop someone from violating human rights?
If a powerful person uses their power against you, your choices are submit or fight. Leftists are slowly understanding:
1. There are powerful people
2. They will arbitrarily use your power against you
3. Those people use their power to influence law so the law will not protect you
4. You can't solve this problem within the bounds of the law
It's not hard to look at Ukraine and see that justice cannot be achieved without war and that you don't get to decide when you are at war.