Yes but how many first class wickets has Ashwin got AFTER he started playing for India in ODIs and T20Is?? That is the real question because I'm arguing that once you make the Indian team in limited overs, it's very difficult to play a lot of first class cricket to boost your Test chances. It's the same situation for Virat Kohli. These are guys who haven't made their case for a Test spot through their first class form, they've made it through playing well in limited overs cricket for India. Yet fans are holding ODI/T20 form AGAINST Raina saying that it shouldn't count. You can only play the cricket that's on the schedule.
I see what you're saying, but the guys you mention have the FC record that backs up their ODI performances. Raina on the other hand, not really, an average of 42 in the Indian Domestic circuit is nothing special, especially when you have guys who are better.
5 guys who are better than Raina, right there.