I don't castrate my male dogs for the reasons you posted, but I think rescues would be mad not to neuter every animal they rehome, that said I don't agree with 8 week old neutering. (I do find some rescues need to insist current dogs are neutered beyond ridiculous though, but I won't go into that here! )

I met a bloke with a gorgeous Staffy X the other week. This dog had a lovely temperament and played really well with both my dogs. We got on to the topic of how there are so many Staffies and Staffy crosses in rescue. He agreed and said it was terrible. He then noted Oscar wasn't castrated - I explained why etc and he then went on to say how disappointed he was that the rescue centre had castrated his dog as he would've liked to have seen what sort of pupppies he would produce.

I mean what a numpty - he clearly didn't connect with the "I'll breed just cos I can" attitude with the over population of Staffy crosses in rescue. I have to say I was absolutely gobsmacked when he came out with that one!

Personal choice and neutering isn't always the correct option for individual dogs.
I have an entire dog here,he isn't used for breeding,isn't shown,doesn't have any issues,isn't and has never shown aggression to other dogs,why should I risk putting him under a GA ?

Thats your choice of course but i can't understand why people dont see that rescues have to neuter thats the reason why there are so many in rescue in the first place, overbreeding. Common sense i would have thought.

Male neutering i don't know much about to be honest but i know that females are better spayed because of pyometra

Personal choice and neutering isn't always the correct option for individual dogs.
I have an entire dog here,he isn't used for breeding,isn't shown,doesn't have any issues,isn't and has never shown aggression to other dogs,why should I risk putting him under a GA ?

As I said previously this comment is not unusual from thos pro neutering.

Again, some of us, like me, do a great deal of work for rescue ie assess dogs, homes, transport and actual hands on help DESPITE the fact that we may disagree with some of the policies of rescue.

So naturally we get a little offended by the " I wonder ...... probably not" comments which come from assumptions and jumping to conclusions.

It is not, as in so many cases in real life, an EITHER/OR issue.

If we disagree with some policies that does not make us ipso facto "anti rescue".

Most things in life are not black and white.

Of course I understand why rescues neuter and I know that it's necessary,but not everyone who owns entire dogs is irresponsible.My boy is 6 yrs old in jan and unless he has any medical issues will remain entire.I kept him and Meg before been spayed and never had any accidents and I don't intend to start now.
My bitch is spayed as a result of Pyo,had she not had Pyo she would have been bred from and then spayed.

You said:

i wonder if these people with this attitude have/do anything for rescues ! probably not i'd say

I was pointing out that actually you are wrong, certainly in my case!

I didn't say all people who own uneutered dogs are irresponsible but from a rescues point of view how do they know who is and who isn't ?