I am totally fine with any actor playing any role so long as it convinces me of whatever I need to be convinced of.
The problem I have with Dr Who is that their casting, like their plot lines, mainly seem to be a vehicle for virtue signalling and finger wagging at the viewers. It's annoying and patronizing and, as we can all see, leads to truly awful scripts.
This seems to fit right in with that.
I keep wondering how long they can keep the show going with it's abysmal viewing numbers. They seem to realize they are doing something wrong, but every time they try and make a change they double down on the things that are actually driving people away.
I've found it really interesting how writers who I know have some real ability, like RTD, can, under the influence of modern id pol, produce such utter shit, and think it's good. It's very weird, like it's melted their brains.