Oh come on now. The ****-drippings unions could give to political campaigns are nothing compared to the full golden shower any major corporation could accomplish. While unions might be able to donate more now, they are outclassed more than ever by our corporate masters.
The point is that the regulations did little to effect corporations while those same regulations did much to hinder smaller organizations. Especially grass roots organizations, small business and unions. Unions were more restricted prior to this decision than corporations.
The recent health care bills showed the power and influence of those corporations to effect legislation. Not filing paperwork on time could result in a small grass roots organizations paying fines far in excess of the actual cost of their campaign. Actually, it could hinder small campaigns as well.
What this decision does not do is allow for unlimited direct contributions to political campaigns.
Also, you cannot ignore the notion that if the U.S. government recognizes that corporations themselves do have free speech rights as protected by the First Amendment then you cannot abridge those rights if those same rights are still protected for individual citizens.
Which is why we need to readdress the whole concept of corporations completely.
Remember, this case was not brought by an auto manufacturer, an oil company or some other big bad evil overlord corporation (there's my hyperbole for the thread). It was brought by a group called Citizens United. A relatively small non-profit organization that most people never heard of until they released that movie critical of Hillary Clinton. A very small corporation took this to the courts and won. Their political ideology is irrelevant.
Other groups that could have challenged the McCain-Feingold law, which is what was challenged by Citizens United, would have been Californians Against Corruption who were fined, under the McCain-Feingold law, approximately $800,000 for failing to file reports regarding donors. A $100,000 recall campaign was fined for 8 times more the cost of that campaign because the employment and occupations of less than a hundred donors who gave more than $100 were not filed properly. No corporation or aspiring rich politician, especially an incumbent, would ever be so burdened.
Last point. This decision is no bar to future laws, with better language, reforming campaign finance. The decision is not a sweeping, absolute and permanent end to campaign finance. This decision specifically details speech regarding political ads just prior to an election.
We have to review the relationship between corporations and individual rights. Keeping bad laws in place isn't the answer.