I think many men are a bit embarrassed to admit they quite like bigger girls because they have been conditioned to think that to be normal you should lust after leggy skinny gilrs with implausibly out of scale tits. They used to be in the minority, and were revered, rightly so, for being beautiful rarities. But these days anyone lucky enough to be slim and leggy can buy herself some tits so the naturally booby and curvey (with dumpy wide hips and thighs and arse to match) are at a bit of a disadvantage!
Whilst the average man doesn't like REALLY big girls, (not in our culture, anyway) they do all say they don't like stick thin, muscular over-toned anorexics either. They like soft womanly curves, even on slim girls.
Believe me, there are men out there who genuinely luuuurve big girls, you just need to look in the right places. I think the feeder thing is a bit creepy, but just an appreciation of a much fuller figure is not that rare. Search on the net for specialist dating sites, or target men from cultures that appreciate you.
Also, as everyone else has said, confidence, and making the best of yourself is a huge deal. Many men are very intimidated by girls who look conventionally perfect as they are often shallow and vain, with an ice-maiden persona and a superior sense of entitlement.
Equally, don't set your sights too high. Smile and chat to men even if they don't look like Mr Universe. They could have all the same inner doubts and feelings of low self esteem that you have, but they could turn out to be your Prince Charming.