I get you as I was once a noob and still am one (I joined in Jan 2014). The attitude that you see in RA1 is that which you'd expect of schoolchildren in a playground, then you log on to Facebook and realise that these people are in their 20s with corporate attire. I have no further comments on this...except that it's the way it is and you can't change it.
I was kicked out from 'pro' rooms for 5 months, then I started learning a map which most of these 'pros' play, and then I beat some of them in 1v1s. The beautiful thing is if you beat just one pro your name will start to spread. It's quite a word-of-mouth/referral thing so if one pro knows you're good, he'll tell the rest to not kick you out.
I'd recommend that you practise the map that these 'pros' play (I use inverted commas because many of these players are good in only one particular map - you'll find out easily what it is), do some 1v1s or demonstrate that you know the map. Then you wont get banned anymore. And as you get better and beat more people, those trolls who were so mean to you will suddenly start being nice.
Trust me I'm speaking from experience