Richard Rhymer,
I am heterosexual, mother of six, grandmother to eight. 
Over my life I have known many LGBT's and I have seen the pain and suffering they have had to endure because they are honest about who they are and do not hide, even if it is safer for them. 
Do you honestly think they make a "choice" to be beaten up, spit on, fired from their job if they come out, to be called vile names or be rejected by family members ?
For too many years they had to hide in the dark but now they can celebrate in the light and open who they are. 
As for children, they appreciate honesty and learning that people can be different and accepted, it's a great life lesson. Children are far wiser and kinder then adults are.
You have the right to freedom to NOT watch or participate in the Pride Parade or activities. 
They have a right to enjoy and express themselves in a legal Parade.
You don't want to celebrate fine but I say live and let live, it's not hurting or damaging anyone or anything.