Well having googled that quote and found nothing by a normal news site I'm not clear why anyone would think the Twitter account you linked to is anything other than pure fiction.
It's a video. Unless you claim the video is somehow deep faked, his words corroborate what the comment says. And if you don't want to trust that, then here's direct link to CTVNews where he says those words at 3:26 mark:
They could ban those donors from ever entering Canada but that's about it. If they successfully pull off equating the truckers with terrorists, then they could request the US extradite them but that's pretty far fetched. Then again, pretty much everything they've done has been far fetched so who knows what they'll try next.
Why would he be talking about US people? He has zero jurisdiction over that. And even if he were talking about US people, that still wouldn't make such comments okay.
Canadians donate to US protests all the time and vice versa.
Plus, the Deputy Director of Intelligence for Canada's financial intel agency (FINTRAC) said there is no evidence of suspicious transactions around the freedom convoy:
Of course he has jurisdiction over that - Canadians don’t have jurisdiction over drunk driving in the US, but if you have a DUI you’re going to have a tough time getting into Canada.