The adversarial nature of British politics needs to be changed. MPs are elected by FPTP.
In the general election of 1983 this resulted in-
Conservative Party 42.4% of votes elected 397 MPs
Labour Party 27.6% of votes elected 209 MPs
SDP/Liberal Alliance 25.4% of votes elected 23 MPs
How could anyone claiming to believe in democracy defend this?
The distortion of FPTP maintains a two-party system as it is so easy for MPs to be elected in "safe seats" Any party, like the Liberal Democrats, which does not represent the interests of a narrow social or geographical group, but has support across the country, will always struggle to break through this distortion.
The result is reflected in the design of the House of Commons where government and opposition MPs sit on opposite sides of the chamber, three swords-lengths apart. This is inherently confrontational. In most democracies a circular or semi-circular seating arrangements reflect the gradation of views rather than "them and us" , representatives are elected by some form of proportional representation and this tends to result in coalitions between parties which have to learn to work together for the good of the country. In mature democracies, "compromise" is not a dirty word.