FPTP only minimally represents the views of its constituents. An MP in Belfast won this year with just 24.5% of the vote. [1] How can that be considered democratic? 75.5% of constituents, under this system, did not vote for that candidate. Alternative voting systems - such as my preferred system of STV, take into account the views of all constituents
Of course, constituents can and will vote for their preferred candidate, and that will in itself often lead to safe seats. But FPTP has a particular problem that it naturally trends towards a two party system, and in doing so inherently creates very safe seats.
Safe seats are created by a process called Gerrymandering, where the politicians manipulate the boundaries in order to manipulate the vote and the result of the election. In essence, this can turn a slim majority into a landslide victory. This "stupid...rubbish" is an attempt to stop the inherently undemocratic process of gerrymandering.
The outcome of the election should closely represent the proportion of views across the country. FPTP has proven that it quite simply cannot do this. We need proper electoral reform. If only we had an opportunity to vote for this (oh, wait a minute...)
This is a predicament facing millions. I have lived in a safe seat for most of my life, and I never thought my vote would have counted for anything. Labour would have won over and over again, returning the useless Tom Clarke to vegetate on the seats of Westminster. Our elections consisted of getting one or two leaflets from Labour (the same ones every year...), and occasionally a half hearted attempt from the Conservatives who in reality didn't have a snowball's chance in hell, and often fielded candidates from 50+ miles away. Democracy didn't exist. There was little point in voting, since we knew our vote wouldn't count.
Of course, in the last election, something unprecedented happened in Scotland. The country recorded record swings in the vote, as people who supported independence realised that they were not alone and had the confidence to vote SNP, swinging the country to being a collection of largely safe SNP seats. It took years and a monumental referendum for that to happen, though. And I don't think the outcome is any more democratic, either. The SNP took about 50% of the Scottish vote and gained all bar three of the seats. As an SNP supporter, I was obviously ecstatic, but I can't say it's very democratic.
As I've said, reform is needed, but sadly the nature of politics is that reform will be pushed aside by the current MPs who will argue that the current system works fine, mostly because it keeps them in work.
The SNP do argue for electoral reform. Now that they have benefited from FPTP for the first time, I'll be interested to see if their interest in reform remains constant.
References:
[1]
https://en.wikipedia.org/wiki/Belfast_South_(UK_Parliament_constituency)