Well unless you are American Indian, you come from a family of Aliens yourself - so not being an Alien fan is not being a fan of your own family.
I know what you mean though and people want newcomers to be subservient - a bit like a new boy in school.
When I was in the rifle club, we got a new member who didnt like the way anything was. The club had been formed in the First world war (1914 -1918), and was used in the second war (1939-1945). It was musty dusty and stayed the same for 40 years. He got cracking and organised a whole new shooting range with grants from various bodies and fund raising activities etc. Instead of shooting in some old stables, we ended up with a fantastic new range just outside town. We made him president within 6 months of him joining the club. The energy and new ideas of newcomers can be really beneficial.
Your image of an 'alien' seems to be a shady criminal who wont pay taxes and who messes things up for everyone. The people who are affected by the 'alien firearms license' problem are fully documented and FBI checked already and far more valuable to American society than many American citizens that you and I could name.
There are only about 700 in Washington State but I reckon it would be better for American shooters to form an alliance with them rather than telling them to get back home. We hang together or hang separately. Once the bandwagon of restricting legitimate shooters is rolling, it won't stop with respectable, documented, FBI approved aliens - they will take your guns too.