Doesn't current laws require harm to competition to have already been made in order for them to enforce anything?
So Adobe acquiring Figma isn't unlawful, until it is proven to have a bad effect on consumers.
I think what parent is saying, is that we should adjust laws to be more pro-active, that if there is a possibility/high-risk of the acquisition to have a bad effect on consumers, it should maybe be considered a bit more than usual.