Your thinking wasn't wrong, the problem was that the municipal and provincial police and governments abdicated their duties and abandoned their citizens. The federal government stepped in because the lower levels of government refused to do their duty for weeks. I don't disagree that Trudeau stepped a foot beyond his jurisdiction, but in that scenario, he was being the only responsible adult who actively cared about the well-being of Canadians.
I'm glad it was done, and there was nothing in the execution that was heavy-handed or otherwise untoward. The people had more than ample warning to disperse, the line moved slowly (giving the people every opportunity to leave of their own volition), force was restrained and minimal. People got arrested because at that point they made the choice to be. It certainly was not the situation we currently see unfolding in the US right now (which, if we are honest, the convoyers would have wanted for their side to perpetuate, if they could).
The other day I went out for lunch with a friend and some acquaintances. One guy ordered a burger, and then he went on for a little time about how is it possible there are enough cows for everyone to have a burger? How many burgers can you get from a cow? Where are all these cows coming from??
So I said it's factory farming, these cows are produced for the sake of their meat. A cow is huge, a quarter cow is enough meat to feed a family for a whole year. I don't think this guy was being purposefully obtuse, because I don't know him to have that kind of personality, so the only remaining explanation is he really is that ignorant/stupid. In this age, we have lots of people who don't care, or wilfully turn their eye from it. But to not know?