What are the most undemocratic pressure groups and why?

The UK is fundamentally a free society, is tolerant and made up of different cultures. Pressure groups are free to be active in this free society. In some ways, you can suggest that pressure groups can be undemocratic.

A pressure groups is a group that want to influence the government on a certain idea or policy. Pressure groups can be undemocratic because when influencing the cause or policy, it's only a minority that agree which means the majority are not involved or agree. This is undemocratic because  it's important that the idea of changed or considered has everyone envolved not just the pressure group. An example would this would more likely be a insider pressure group such as the BMA ( British medical association)

Another reason to why pressure groups could be undemocratic is that it is politically unequal. The argument against the pluralist image against pressure groups is that they are far from dispersing power more wider to normal people. Instead the power goes to the people already with it, giving them a greater amount of power. This reduces democracy and is a form of political inequality. An example of this is a trade union or charity.