As said get the hub out of the way. Two long extension bars wedged against the welded on brake line bracket and the wheel arch I find helps.
If you have a bench grinder, take the slight bured looking edge off the metal of the bush, and or, lever the subframe bracket open with a large pry bar.
Do a test run so you can see wishbone slides in nice, with hub/shock out the way.
If it still won't go in you may find the roll bar is in the way of keeping the wishbone level. Keeping it level to the car is key or the bush twists in the hole and you'll never get it lined up. Remove both drop links with bith sides jacked on stands and you can lift the roll bar out the way if helps?
Wishbone slides in, bolt drops in, if wb level.( make sure you don't drop the bolt or socket in the subframe opening;) ) Then do the front bush bolt, then lever wb down with a bar in the hole and pin pointing out board. Place hub hole on top. Push shock in, pin pops in.
Ps, if the bush isn't pressed in square to the wishbone, that can cause agro as well.