They’re really not.
Take a look at Trump’s America to get a sense of the scale of corruption that Reform would usher in. It’s different level stuff.
It's not really a proper comparison though, totally different legal systems. We have far more checks and balances here and the PM doesn't have the power of the President.
You've been posting about how Labour will be different, they're not quite on the same scale as the Tories (yet) but it's essentially the same playbook, political parties and some politicians do whatever is in their interest.