Nicely because he was one himself.
There was only one James I of Britain. He suppressed any religion which was not Protestant. He particularly suppressed the Catholics following the Gunpowder Plot in which Guy Fawkes attempted to blow up Parliament.
Some do
because he was nasty and palm to all
He hated the protestants and loved the catholic religion.
The Protestants wanted to frame the catholics so Robert Cecil King James I chief adviser set them up and gave them the idea then sent the letter to king James the Protestants then had a reason to prosecute the catholics !
catholic and protestants
Because he was sick of protestants like Elizabeth I and James I
Catholics and Protestants
James married Anne of Denmark in 1589james the 1st married a french catholic princess this made purations and protestants very angry .
protestants to catholics
James W. McAuley has written: 'The politics of identity' -- subject(s): Social conditions, Protestants, Working class, Marxian school of sociology
Because it was discovered!