Realistically, what are you repairing?
Out of the literal millions of discrete parts in an iPhone or computer, how many of those are you able to repair now?
Seems to me you aren't even repairing the screens, rather you're replacing a component being purchased from the OEM. You are fighting for the right to purchase more components, not to fix anything.
The chicken and egg argument is at least compelling.
If someone takes away your soldering iron OK then you complain.