I must say that I get a little frustrated by such arguments (nothing personal, but having followed UK politics for some time without being too politically inclined, I hear this over and over again).

If you like Paddick, vote Paddick. Far too many people in this country use the argument about how they really like another party (LibDems, Greens, etc.) but "as they will not win it could let in [enter name of one of only 2 parties here] so I will vote for [insert other name here]" and then go on to complain about how boring politics is and how nothing ever changes.

That is called a self-fulfilling prophecy and obviously in the interests of the 2 parties. This is not a democratic process.

If a few more people stood up and said I'm voting with my conscience it will inspire others to do the same and Paddick or Sian Berry or Michael Hodges, or whoever, will eventually prevail.