Do you have any links that show that it's wrong, or at least some non-circular arguments for why it is wrong?
How about you backup your claim that vaccine-resistant strains occur as a result of vaccination? Because after searching on this all I can find is conspiracy sites mixing this in with their other bullshit claims.
A quick search on pubmed turns this interesting looking paper up - Vaccines and their impact on the control of disease.. From the abstract - "Despite intense (and often successful) attempts to control infectious diseases through vaccination, there is still rather little evidence of the emergence of strains of pathogen resistant to vaccines.". It goes on to say it's certainly possible and should be planned for, but seems extremely rare.
Those pressures are only against being in the same host body as another virus. The proportion of people with a given virus at any one time is pretty low, low enough that this is pretty irrelevant. You're not talking about competition between strains in general.
What you are arguing for is for people to be permanently infected and suffering from a disease, in order to try to prevent another disease emerging or spreading - a state which would more likely lead to adaptation of viruses to these conditions.
Many elderly people were immune to the 2006 H5N1 "bird flu" because they had antibodies against a close sibling, whereas those previously inoculated did not have the same resistance, and required re-inoculations against the particular strain.
Sure, because nobody had been vaccinated for a close sibling to that sort of flu either. Not entirely sutre what you're trying to say here, but if it's the old "Natural Immunity is better!" canard then I'd ask you to think about how many of the older generation are not carrying forward such immunity because they're dead. Those currently getting vaccinated against particular strains don't have to be.
Any one of these would be enough to give an advantage to a virus without less deadly siblings in the wild. Do we want to increase this risk to save a whole bunch of lives today? Apparently, yes. I won't say it's the wrong decision, but I do respect those who think otherwise.
I disagree, the first four only apply to the case of multiple infection and are irrelevant. The last is effectively a vaccination anyway (see cowpox and smallpox.)
There's little evidence that this risk you point out is increasing is really increading. besides which I do not believe for a second that this is a real concern to many people who are against vaccination.