The issue is not that copyright is weak; try telling that to Disney who still retain Mickey after god knows how long.
The issue is that it's becoming nigh impossible for a regular Joe/Jane to interact with massive international organisations on anything other than their terms. Whether it's cutting a deal you can live off for your music or suing them for just taking your stuff without permission, it will always be an uphill battle against an entity that can afford dozens of lawyers and scores of employees to deal with your case if they don't feel like backing down.