I don't know, "each time you vote, you support the process" with "the process" being outlined as systemic corruption and the political unrest that happens as a result, seems like a definitive condemnation of voting to me. The implication is that as long as we vote we are tacitly supporting that corruption, so voting is bad. Morrissey has also expressed similar opinions in interviews. He hasn't outright said that voting is "evil," but he certainly doesn't give the impression that he supports it. So Eric Hartman makes a decent point.
As far as the bullfighting news is concerned, it's great to hear, but there is not much in the way of evidence to suggest Morrissey had a direct influence on the outcome of this vote. He's raised awareness of the cruelty of bullfighting, which is commendable, but public opinion of bullfighting in Spain has grown increasingly negative in recent years (as briefly noted in the PETA article) independent of Morrissey's proselytizing; this seemed like an inevitability with or without Morrissey's songs or statements.