In my opinion, leftists are the people that always want to question things, soul search and debate with a view of changing things for the better.
Do you know anybody that doesn't want what he considers to be better??? Everybody thinks that his own beliefs are the better ones. Sorry, but your definition is ridiculous.
Here is a better one from Google:
A broad range of political ideology that is denouncing the of economic and social inequality in the present order of society and advocating the adoption of vigorous public policies to reduce or eliminate these inequalities in opposition of the political agenda of the rightist. Common political paths include socialism , communism , social democracy, welfare statism, contemporary American liberalism and anarchy.
The basic principle of the left is that all citizens should be equal without racist, sexist or other kind of discriminations. At the extreme left (communism) people should also be equal in terms of how much they own - which shouldn't be much since most things would be common.
With social democracy (the "modern" version of left) we have democracy that by legislation it restricts the capitalists (=higher taxes for the rich, publicly owned companies for common interest etc), ensures that there are no racist, sexist or other discriminations among the citizens of a country, and it strives to give equal opportunities to all people by investing in free education, health care etc.
Apparently Bananiot you like the word "leftist", like you like the word "united". Unfortunately it is not about the words, but it is about the essence.
Your support to inequalities among citizens based on their race, and your support to a party that serves the interests of the capitalists more than any other (DISY), would make you at least an 8 in the scale you gave.