I would hardly consider that the "good old days" any more than I would consider what's going on with gay marriage and bakers the "good new days".
The problem with the situation is that you cannot guarantee constitutional rights for one group without violating what another group sees as their constitutional rights. Gay couples have anti-discrimination laws on their side that say they can't be discriminated against. Fundamentalists have religious freedom on their side saying that if they can't discriminate then they can't practice their religion as they see fit.
Let us suppose you have a gun store that sells guns to customers who want to go target shooting or perhaps defend themselves from assault.
You happen to agree with this usage of your product, and have no objections to selling to such people.
Then along comes some thug "gangbangers" who have more or less informed you that they plan to use your product for "drive by shootings" or "revenge killings" or some other unsavory usage, of which you morally disapprove.
Should it not be your decision to run your life in accordance with your own moral preferences?
If you find the projected usage of your product morally offensive to yourself, why should you be required to participate in it?
Of course the Feds will force you to sell guns to "gangbangers", and if you refuse to do so you can be prosecuted by their "civil rights" division.
It is the very notion that the Feds, or the State, or the Municipality have any right to tell you how to run your business that is the base fallacy at work here. They do not, and they should not be permitted to tell people who to run their businesses.
Let those people who wish to support vile usages of ordinary products do so, and let those who do not wish to sell products for vile usages do as they wish too.