Zarah is fantastic. Labour has lost one of it's best MPs. Deservedly. I commend her for this.
I'd urge everyone to consider supporting her and Jeremy's new party, even if you're a "hardliner" who might find some of their platform insufficiently radical. I think they really do believe in building socialism and solidarity, and their track records are very strong.
The current crop of British communist parties exist well outside the mainstream (and seem to have major issues with transphobia.) Zarah and Jeremy are fairly well known figures and I honestly believe they could build a party that could become a major force to fill that gap on the left that Reform has filled on the right.