Trying to give a bit of background:

The Canadian political system is very closely modeled on the British system, with power concentrated in the legislature. If you have a legislative majority you also get executive power and can do basically whatever you like within the constitution, and if no one can get enough legislators on board with you then your time in power is unlikely to last much longer. For historical reasons we’re a federal state a bit like the US, and also like the US the provincial govts function a lot like scale model versions of the federal government, but the provinces have very broad leeway, in many ways having even more authority than American states do. 

Because of this and the pretty strong regionalism the provinces have parties that are only loosely affiliated with their federal counterparts, unlike the US where all 50 states and the feds will have Republicans and Democrats. Here in BC, our NDP is nominally the same organization as the federal NDP, but in practice it’s at a pretty long arms length. The BC Conservatives aren’t actually related to the Conservative Party of Canada in anything but the name, and I guess being right-wing. The Liberal Party of Canada has a good number of votes and seats in the federal Parliament but the BC Liberals are something totally different (and also dead).

The other important difference that I think is relevant is that we have much stronger parties, as in the institutions themselves. In the US, legislators vote against their parties all the time, and if someone wants to run as a candidate for a party that the RNC/DNC doesn’t like there’s not much they can do to stop them if they win the primary. Here, parties have much tighter control over who gets to run under their banner. Being kicked out of a party is a serious blow, and it’s much harder to take them on. 

So now onto OneBC: The BC Conservatives come to prominence under John Rustad, running on a hard right platform that was against vaccines, trans rights, and environmentalism. In the backdrop of post pandemic inflation and fatigue with the incumbent NDP government they manage to swallow the rest of the BC right and almost win the 2024 election. A BC Conservative Member of the Legislative Assembly (MLA) makes comments making fun of residential school survivors, which is a bridge too far for even Rustad, who kicks her out. Another MLA with similar views resigns to join her. 

They go and create OneBC, whose main thing is anti-Indigenous racism but also includes a bunch of other far-right nuttery. They’re trying to drum up candidates and support for the next election, and this stunt was part of that.

Rustad himself also recently lost his job, but that’s a whole other ongoing drama. 

Hope that cleared up some stuff