Dude, just stop with the colonial apologia.
People don’t really hate the English other than when they begin to justify their colonial atrocities.
The colonialism we did with a navy that was about 20% Irish and an army that was about 30% Irish? Ireland hardly innocent on that front.
The oppressed are coerced into the military all the time. The shtick is to make their living conditions so horrible, their chances of employment so shit that they have no other choice other than to join the military that provides them with the only reprieve.
Look to Russia with the buryats and other marginal groups for an example that’s not UK.
You should also know the Irish were treated as second class citizens even when they were allowed into the military.
Scotland willing got into the union.
Being British isn’t the same as being white. Plenty of shitty colored British folks too.