The people who started the GoFundMe are Tamara Lich and B.J. Dichter. Neither of them are truck drivers. They are, however, racist conspiracy theorists.
Tamara Lich's Facebook pages were full of Islamophobia, and conspiracy theories about the "Muslim Brotherhood" operating in Canada, and her own personal activism supporting conspiracy theorists. Tamara Lich is also an official of some kind in Canada's "Maverick Party", a very fringe movement advocating for western separatism.
B.J. Dichter is an activist for the similarly fringe People's Party of Canada, and has described the Conservative Party of Canada as "suffering from the stench of cultural relativism and political Islam".
Patrick King is another important figure in organizing the convoy, and he is a Nazi. He promotes the "great replacement theory", minimizes the Holocaust, and argues that Jewish bankers are controlling politicians.
Dave Steenberg is another organizer whose brain has been rotted out by Facebook conspiracy theory, and who fantasizes about COVID mask mandates implementors being hauled before war-crimes tribunals. He's also shared the logo of the Soldiers of Odin, a totally! totally peaceful group that just happens to like Nazi imagery and "patrolling" neighborhoods to keep the wrong kind of people out. (The actual Soldiers of Odin don't seem to be involved, though).
This "trucker convoy" has been condemned by trucker associations in Canada and seems to not really have that many truckers involved (mostly pickup trucks).
Convoy members have been seen with US Confederate flags, Canadian flags with swastikas scrawled on them, Trump 2024 flags, and so on. Stickers, t-shirts, and other merch of Trudeau being hanged are popular. (I'm sure this is just a little political disagreement!)
They've terrorized towns that they've rolled through, sometimes invoking upside-down "sovereign citizen" legal logic, like telling people they're trespassing on public property. Ottawa residents have seen many protests, but everyone agrees this protest is one of the most disorderly and aggressive they've ever seen. Including, apparently, harassing workers at a soup kitchen, of all things.
On social media, videos of non-white Canadians have often been appropriated and taken out of context to imply there is broad support for this convoy among all ethnicities.
There are some non-fascist people who may oppose mandates and show up for that reason. But this all definitely started as a ridiculous grift by nativists, conspiracy theorists, white supremacists, and literal Nazis, and it's mostly attracted people with obnoxious attitudes.