You trying to say that gay display "exerting a detrimental effect on later generations through the inheritance of undesirable characteristics" is literally an opinion.
Now lets see if any of these Laws of Physics has anything to do with conception.
1. Newton’s Laws of Motion: Nope
2. Law of Universal Gravitation: Nope
3. Maxwell’s Equations: Nope
4. Einstein’s Theory of Relativity: Nope
5. Quantum Mechanics: Nope
6. Laws of Thermodynamics: Nope
7. Laws of Conservation: Nope
8. Planck’s Law of Black-Body Radiation: Nope
9. Schrödinger’s Equation: Nope
10. Laws of Electromagnetic Induction: Nope
11. Kepler’s Laws of Planetary Motion: Nope
12. Coulomb’s Law: aaaaaaand a resounding nope
Edit: Tell us you don't know what a joke is without telling us.
Balloons still fall, they just fall up.
And to add, Coulomb's law dictates electrostatic attraction between molecules, very much necessary for conception

Just to ask, have you ever studied science at a non-high school level?