Reducing contact because my heart just isn't in it.

Of course, just reduce the amount and duration of texts, phone calls and emails. Allow them to contact you first sometimes.
Maintain a relationship and see what happens.Parents aren’t perfect and have their own troubles and insecurities.

Yes, I am aware. I have adult children. I did raise them very differently and, fortunately, it seems to have worked with them.

I’m so sorry that you’ve found yourself in this situation, lovethepuppies. It’s a credit to you that you are thinking of them & not wanting to hurt them, even though you are hurting yourself.
You say that you have finally reached this point….have you tried to explain to them how you feel and what has brought you to this point? Do you think it is possible for you to work with them to improve things before taking such a drastic step, which would be so difficult for all of you?

I still can't see private messages but will reply when I can. This has been a while coming. I've let it go up till now but nothing is going to change the current situation. Talking about it won't achieve anything. I'm not looking for estrangement, I just can't play along with the close relationship pattern anymore. It doesn't feel real. That's a bit to take in but no, I don't want to hurt my parents. They don't deserve that. Some hurt may be inevitable though. Hopefully I can access my messaging soon.

All credit to you that you are thinking of your parents feelings even though you want to distance yourself. If your children are adults what is their relationship with their grandparents??
Do they also have a reduced relationship with them??
I imagine this is complicated and there is much more to it but if your adult children have a good relationship with their grandparents would encourage that but try to pull away gradually yourself whilst still keeping a narrower line of communication open because as you say your parents are not getting any younger.

For context I am fully estranged from my abusive parents and I don't feel a bit of guilt for it. Hey neatly, I don't really care how they feel about it either. That being said, your situation is clearly different from mine.

Without knowing about how you currently communicate with them, I would advise that you start by being less available. Maybe you can pick a time of day to check/respond to messages. If you talk on the phone, pick a cadence that feels right to you (like once a month) to call and chat. Of course you would make exceptions for emergencies.

If there are certain divisive topics that come up, just gently tell them that you aren't up to discussing it and be firm about it. End the conversation if they don't respect that boundary.

They will probably be hurt by it but there's no avoiding that. Sometimes you just have to take a big step back to save the relationship. Keep communicating that you love them.

*Honestly not "hey neatly"