Nice.... keep it simple.

I can also argue this with you... I know some muslims who pray 5 times a day, go on Hajj, pay Zakat etc that are much better Muslims than those who cover and do not pray etc.

Someone is muslim if they adhere to the 5 pillars of Islam... I dont think you can denounce someones Islam if they are not covered...

"Diplomacy is the art of saying 'Nice doggie' until you can find a rock - Will Rogers"