Dude, I get where you're coming from and agree with what you're saying. Our system is not as democratic as it could be. There's countless ways to improve it, replacing FPTP is only a start. It's not right that the country can be governed by anyone without a substantial majority of the populations support.
HOWEVER.
What are you going to do about it? Not trying to be passive aggressive, it's a genuine question. One I've been asking myself for the past few years. Parliament isn't going to change because people mumble about how silly it is. If you want things to change, you have to take action. A silent protest is no protest. Grab a banner and take to the streets if you feel strongly enough. Organise a massive strike to take to the streets and just cause them nothing but trouble until you're heard.
Basically, what I'm saying is that to change a system as large as this, you can't just complain on TSR. You have to take direct action, organise a following and act in a way that can't be ignored. The most effective methods will probably get you thrown in jail or left starving on the streets without a job, but if you don't feel strongly enough to take that risk then you should really ask yourself if you're really that bothered.
*awaits hate*