This muslim friend also has very illiberal views as do most muslims he believes Saudi Arabia is doing Gods work by chopping hands and feet off, execution by beheading for apostasy etc. I believe it is logical that when a muslim crosses a border into a western country their opinions don't necessarily change. We know what muslims think by the extensive research in the muslim world and in the west.
when they cross the border their opinion doesn't amount to squat, they are now in a NEW country, learn to live by their rules.