It seems very prevalent that many people choose not to do business with other people or companies that they believe are sinful. For instance, some companies allow the employment of homosexual workers, and this is a problem for some consumers. They choose not to do business with these companies, because the business's beliefs are not in line with their own.
Take a moment and think about this. If you avoid doing business with someone because you believe homosexuality is a sin, should you also not do business with companies that employ alcoholics? Should you do business with companies that employ liars? What about people who eat too much or buy too much stuff? Isn't gluttony a sin?
The point is that everybody sins. So where do you draw the line?
Jesus himself associated with sinners, eating with them (Matthew 9:11, Mark 2:16). This bothered some people, and they couldn't understand why he would do this. But he said "Those who are well have no need of a physician, but those who are sick (Matthew 9:12, Mark 2:17)." He was there to help sinners. How can you help sinners if you only ever associate with other Christians?
I'm not saying it's wrong to avoid a company you don't agree with. But there is a difference between a company that employs sinners and a company that promotes sin. And there is a difference between associating with someone who does sin and taking part in their sin or showing approval of that sin. We should be aware of these differences when we make the decision about whether or not to do business with someone.
If someone has their car washed at the local Spiffy Clean car wash does that mean they approve of everything the owner of the car wash does? Do you think everyone driving through the car wash agrees with the owner? Do you believe someone who sees another person having their car washed automatically assumes that person agrees with the beliefs and actions of the car wash owner? That doesn't seem likely.
Should we approve of sin? Absolutely not. But if we were to not do business with a company because they allow sinners to be employed there, guess what: you're not going to be doing business with anyone.
Now there are times when a company is so unjust that people should stand up and make a change. And perhaps that is your position on every company. But can you know the practices of everybody that is a part of every company? I say let us simply act righteously and humbly. Hold steady on the path of truth. Help others to see and do what is right. Let other faithful people help you stay on course as well.
But just remember that everybody sins and falls short of the glory of God (Romans 3:23).
Keeping this in mind, let the Word of God guide you in all of your decisions. Do what He would want you to do. Study and learn His Word and make yourself prepared for every decision.