Why can't extreme left wing Europeans can't be taken seriously?

I mean after all shouldn't chimps be declared human - chimps are people too don't you know? See: a href="http://news.yahoo.com/s/ap/20070927/ap_on_fe_st/chimp_challenge;_ylt=At405YTZHkldmhtz_OUZ.AQuQE4F"http://news.yahoo.com/s/ap/20070927/ap_o…/a