Who is denying them freedom of speech? No one.
Who is denying them freedom to gather? No one.
They have every right to gather and speak elsewhere.
Did you even read the article?
Try thinking through this a bit.
Because the Minutemen are threatened unlawfully, the town will not allow them to meet. What kind of message does that send?
Be MORE violent next time and you'll REALLY be able to stifle your opposition. That is why the town needs to stand up to the thugs, and call in help from the State Police if needed to arrest the thugs.