Your post doesn't make much sense.
If you were stuck in a queue of traffic, you aren't going anywhere and Cyclists would just filter by you.
As for being stuck behind a massive tailback.... I'll give that some cyclists may be selfish, but if its causing a ten mile tail back, I think they would go single-file. I've never seen a situation like that and can't readily see it happening. Ultimately though, how is it any different to being stuck behind a horse rider, tractor, caravan, slow HGV?
There are too many cars on our roads as it is, which is something that is only going to get worse. Engine emissions are emissions, nit picking over whether somebody has to brake or speed up is silly because that is fundamentally how you drive any vehicle, regardless of whether you are behind a queue.