Do you think they will ever stop insulting people other than muslims do you?
No they wont its because of the way they were brought up when they were kids or the way they were taught by teachers or perhaps money. but what ever it is the only thing they can do is insult and if you are man enough you should be able ignore those fools.
If people are getting converted to islam or to any other religion for that matter I feel pity for them ( because I pity the FOOLS

) as far I see I dont think any of the religions on this earth is bad/evil (unless people made it evil for their own advantages) So if someone says oh the religion I believe is not true and I must go and get converted well that person should get his/her head examined first

because thats where the problem is not with the religion
What I have to say to you as a fellow Catholic believe what you believe brother no one can stop it

always respect others and their faiths and dont question them in a way which they will get offended. If you have questions just ask them nicely I am pretty sure they will try thier best to tell you what they know

Finally dont argue with FOOLS waste of your time. Let them shout/insult at the end of the day they get nothing