I could write for a long time about the trite sayin, "love is love."
For instance, you cannot define a word by using that word.
Or, the reaction that goes something like this: "No kidding? You mean love is actually love? Wow. Mind blown!" (sarcasm intended)
But, as we have known since the saying broke into our house and took it over, this saying is the banner of a worldview movement that seeks to glorify adultry (defined as any sex outside a marriage between one biological man and one biological woman), and demonize anyone who opposes it.
"Love is love" is just nonsense. If love is to be celebrated, and love is a verb (an action we take in relationship to another), then why are we celebrating the action? Aren't we forgetting something important --- like the object of the action? For instance, if love is to be celebrated in a vaccum, then you cannot criticize whatever object we choose to love.
For instance, if I loved fluffy kittens, then nobody is allowed to criticize it because: love is love.
But if I choose to love evil, what then? Do we celebrate the Nazi leadership because they loved power and loved genocide? Do we affirm family members who are addicted to (and love) drugs that are killing them?
"Run" is a verb. Running is healthy and good, but if we celebrated running (running is running!) as a morally and objective-detatched concept, then we would line up to cheer those who are running into a den of hungry lions, to the edge of a high cliff, or into a forest fire.
There is a line that, even the most ardent defender of "love is love" will draw. They would agree that love cannot be used to pursue certain objects that they personally consider morally objectionable. For instance, they stand in moral judgment of those who love political views that differ from theirs.
It is where they draw their own particular moral line that is the rub. They would define biblically defined sinful behaviors as legitimate. Christians believe that what God has called sin should be avoided - regardless of what that sin is and regardless of how passionately any person may want to pursue that.
Do not love the world or the things in the world. If anyone loves the world, the love of the Father is not in him. For all that is in the world—the desires of the flesh and the desires of the eyes and pride of life—is not from the Father but is from the world. And the world is passing away along with its desires, but whoever does the will of God abides forever. 1 John 2:15-17
You can read much more about unpacking this saying by accessing an excellent article by an author who formally was on the "LGBTQ+" spectrum, Rosaria Butterfield, by clicking --> here <--
(Bonus: there is a button where you can listen ro Rosaria read her own article to you)