If the resolution has no effect why would the US risk being seen as a genocide supporting nation by vetoing every resolution? The US is also risking loosing the

If the resolution has no effect why would the US risk being seen as a genocide supporting nation by vetoing every resolution? The US is also risking loosing the veto as many are now considering changing how the SC works. The SCs job is to secure global security and peace. The US is doing the absolute opposite.