The problem is that you've fallen for right-wing propaganda hook, line and sinker.
Do you really believe every asylum seeker is a fit young man from a safe country? It is simply not true. And why do you think fit young men cannot be asylum seekers? It is often men who are targeted first because of the obvious danger they present to violent regimes if they are opponents of those regimes; also, of course, get the menfolk out of the way and you have free rein to rape, kill and traffic their wives and children.
I can guarantee that they don't believe they can pick and choose where they live at taxpayers' expense, because they know perfectly well that they can't.
People who have lived on the barges have attested to what is wrong with them, and the conditions in which these people will be living will be considerably worse as they will have to share cabins, will be there most of the day, and will be subjected to a fire risk as confirmed by the Fire Brigade.
Yes, we do need a safe affordable solution, but how on earth can you possibly believe this is it? The barge will house around 1000 people, whilst during, due to the government's massive inefficiency, we have a backlog of 50,000 claims.
What would be a safe, very affordable solution would be to accept France's offer of asylum processing facilities there, and make our own asylum processing system much more efficient. We could then quickly deport genuine illegal immigrants and move genuine refugees on so that they can work and become net contributors to our economy. I cannot for the life of me understand why people like you dismiss that and favour ridiculous initiatives like this that manifestly achieve nothing.