You're not wrong mate, unfortunately.
But the more they deny the access to alternative thought on the internet, the easier it will be for extremists/terrorists like myself to influence people IRL. Its too easy to fall into the trap of slacktivism, and once even that isn't possible, people will be hitting the streets in droves in developed countries.
It's not that obvious though, people won't even know it's happening.
Look at facebook for instance, they've got people locked in. They can pretty much do whatever they want, until something better comes along (which may not happen for a while).
For instance, I was trying to send a file through Hotmail. They didn't let me send it because it was too large, and recommended I use skydrive. I refuse to sign up for a skydrive account (I don't even know, or haven't bothered to find out what the process is, I just don't want to). So now, I've got an email account, but Microsoft want me to set up another account, and another account, and if I don't want to set up that new account my access to the internet will be restricted (ie I won't be able to send my friend a file).
So once the large media companies have done buying out all the small internet entrepreneurs they will funnel all of their customers into certain ways of using the internet, limiting our use.
Now we have facebook, who's gonna go back to using mIRC? With the budgets these large companies have it's going to become increasingly harder to produce the next big thing.