https://www.ktvu.com/news/marjorie-taylor-greene-scott-wiener-clash-on-twitter-over-lgbtq-slur
Calling Scott Wiener a "communist groomer" is no less stupid than MTG's earlier rantings about Jewish space lasers.
What is Wiener actually known for? He's one of the nation's leading advocates of housing market deregulation, seeking to end zoning restrictions that bar the construction of new housing (a major problem in California and elsewhere). That's pretty much the opposite of communism, which seeks to maximize state control over land use, not reduce it. If anything, Wiener is further removed from communism than MTG herself, given her love of protectionism, severe immigration restrictions, and many other forms of government intervention.
The "groomer" charge is also ridiculous. Asssuming that a gay man must be a "groomer" makes no more sense than assuming that any heterosexual man must somehow be a rapist. If you object to the latter slur, you should also reject the former.