Why blame Obama for tax cuts?

Why blame Obama for tax cuts? People want to grumble because Obama allowed the rich to keep their tax cut by saving the unemployed from being tossed under the bus. What if he would have been as stiff necked as the Republican (another reason the Dems should have got their act together when they owned everything) those who need unemployment extensions just to stay afloat would soon be drowning. If they were allowed to go under what effect would that have on the economy with 100s of thousands or more not buying but relaying on aid? People are looking at Obama like he is letting the rich keep their money and not the Republicans who refuse to let anyone have anything unless the rich got to keep the money. So, should not the dings and barbs go to them and not Obama?