Is the Constitution the biggest obstacle for liberals trying to push Marxist socialist policies?

No

People believing in capitalist fairytales is

Anyone standing up for the constitution is fodder for cancellation.  Truth is another problem for the left.  They won't tolerate that either.

Everybody is so busy undermining everybody else that no system will ever work but the back stop is the goal in the end which is why they do it and why it works to a point as the end game will always be overpopulation and poverty, Ignorance and indoctrination, invasion and occupation so the boiling pot continues to boil out of control with the illusion of it being controlled...

N.Shadows 

Yep...but they won't let that stop them. 

Thanx to people selling this country out for $1400 checks they are in a position to change the laws that are in their way....I wonder if Georgians have any regrets yet.

They are finding ways around it to crush Free Speech.