Ahh I think we may have a misunderstanding. Im not saying it's a good ideology, what I am saying is that it is a very well defined ideology that has been around for hundreds of years. People have written tomes of text on the concept over the centuries and the Wikipedia article distills that. I haven't read all the tomes, but the article does line up with what I have read on the topic.

I think almost all political ideologies have flaws, some significantly bigger than others. For every one you might believe is best, there will always be someone who disagrees with you, either on the overarching ideology, the finer details or even the feasibility of implementation.

That said you mention a contradiction in the definition but I'm not sure where you're reading that. It highlights right to property sure, but it is pretty specific about the freedoms it espouses:

political freedom, freedom of speech, freedom of the press, freedom of assembly, and freedom of religion. None of those even loosely equate to the freedom of all human beings to access and use the very surface of the planet they live on.

For what it's worth I think you're right that the right to private property is at loggerheads with what you define as freedom and liberalism doesn't deal with that issue. Instead its stuck within the basic capitalist structure present in most western countries.

Modern liberalism only pushes for a social safety net within that capitalist structure with a goal of using increased government regulation and operation of critical infrastructure for the benefit of the people. The structure's flaws remain and could be argued are inherent and easily warped to benefit some individuals over others. But the same can be said about potentially all other societal structures.