The end result will be even less competition and more monopolies - inviting additional government intervention in a vicious cycle that ends up with only large, incumbent, too-big-to-fail corporations on an overregulated market. Like how it's in the EU for example. Or the aerospace industry in the US.
Politicians are quite happy with this state of things since their role is expanding and everyone is asking for their help. The ones suffering are, of course, the consumers having fewer and crappier choices...