New airlines (and companies) dont have pensions to pay. The good ole company final salary scheme is yesterdays news.
Virgin are not competitors of Ryanair. One is long-haul the others short. Different markets
MOLeary has asked someone to shoot him if he ever considers long haul - I am sure many will oblige, probably dont need him to consider that anyway.
BA a threat to Ryanair - would be a dramatic re-invention to achieve that. Would suggest Ryanairs biggest threat to themselves is Ryanair.