You say that not eating pork is an Islamic practice; but you are wrong; it is not an Islamic practice.
It’s true that people who are predisposed by their environment to not eat pork will read the not eating of pork into Islam, but that is what is read into Islam, not Islam itself.
In fact, there are people of other religions, such as Jews, that don’t eat pork either. So how is it valid to say the not eating of pork is an Islamic practice?
You see, Islam is everything and Islam is nothing .. It is a blank canvas .. A non existing painting waiting to be drawn .. It is whatever you believe it to be ..
So the argument goes …
[ now take this argument and replace “pork” with any other practice in question ]