If you’re trying to justify your argument by equating the social vitality of Facebook to electricity, you’ve lost the argument.
You don't get to pick what is necessary and what is not, that is a job for Communists.
Facebook and Twitter are the greatest political weapon ever devised and your solution is don't use them.
Sure you can start a competitor all you have to do is convince the advertisers that your list of a dozen users is some how superior to their 2.6 billion. Good luck.
Do you remember which prominent politician first pointed out the power of Social Media in the elections? They were rejected out of hand.