Presbyterians bred too to many liberals.
I have two sisters, raised Baptist in a very conservative family. They both married liberals and started going to the PCUSA Presbyterian church. I can't believe the ideology they both now poses and, it isn't so much the church as it is their liberal husbands.
I myself attended a Presbyterian Church and enjoyed it very much. Very old stream doctrine, conservative and well framed people.
When the PCUSA became so liberal the people wanted away from the PCUSA but, found the PCUSA holds the deed to their property.
In my affiliation with the Presbyterians I met many conservative ministers, and often wondered why they still were associated with the PCUSA and, someone ask me if I knew of their retirement for their ministers, of which I had to reply, no. It's a good retirement but, if they were true men of God they would sacrifice this to keep the word of God pure.
As stated in the above article, the Presbyterian church is rapidly falling to the way side because of its liberal stance pushed by the leadership of the PCUSA, which I no longer attend and, would advise no one who is a true believer to attend any church connected with the PCUSA.
There are Presbyterian Church's that are still conservative
and, they are wonderful people to worship with.
Everything you say sounds like my own experiences. The ministers I have had deals with over the past few years have been completely compromised by the organization. It's a lost cause that as you say holds the deeds.