i don’t think you need to have competed before to have a huge advantage induced by hormones that were normally biologically there. The real question is: where do we draw the line? if a female athlete injects herself with hormones that give her an unfair advantage should this be considered cheating and be grounds for disqualification?

No- but you do see a similar restriction with pro athletes not being able to play as an amateur, partially due to the experience of competing at a higher level.

This isn't that different.

pretty sure if you take any random 250lb male that plays football or something they could be the number one female lifter in the world if they identify as a female for an hour. so not sure if that disqualification would matter

I don't think that's really relevant. In no world are people without medical treatment going to be considered, and no one is going to go through that just to win a medal.