MA politician Facebook posts

I know I exist in a liberal echo chamber but it's a little scary reading the comment section of any MA politician post. Particularly Healy and Seth Moulton. Lots of MAGA and very angry (and misinformed) comments.

Is this really representative of the average MA voter? Or are most normal well adjusted people just not commenting?

Just curious what people's take is and why Facebook comments have become a cesspool.