Collecting taxes is an entirely separate issue, and it's possible to be disapprove of more than one thing at a time.
The 'bedroom tax' is NOT a tax, in any way shape or form. If it were a tax, then everyone with spare bedrooms would be charged it whether they were in social or private housing. In reality, it is a reduction in housing benefit so that housing benefit is only awarded for the number of rooms a claimant actually needs.
People don't need dining rooms, and if someone wants to privately own or rent a house with a dining room or extra bedrooms, then they pay for it. This is not different, and I think society is less divided if people are treated equally. It is not right that some people are given for free and others are not.
The poor are not being bullied, that's a ridiculous statement to make. If the poor are being bullied because they are expected to pay for more than they need, then so are the people who don't claim benefits, because they aren't having extra rooms paid for by the government either.
I don't agree with disabled people having to find the extra rent money for rooms they need, or to stay in a property that they need even if they could manage fine without the extra room, but I disagree because disability benefits aren't enough to cover the associated costs of being disabled. It would be better if all disability benefits were generous enough to cover each individuals needs, then if people need a spare room because of their disability then they can either pay for that in their owned home or their rented one.
The way things are at the moment, a disabled homeowner doesn't get housing benefit to pay for a spare room no matter how much they may need it, and nor should disabled social housing tenants. But they could both be given other non means tested disability related benefits that are awarded according to needs associated with disability. That way everyone's needs are met, and people are treated as equal citizens.