a : sympathy or indulgence for beliefs or practices differing from or conflicting with one's own
b : the act of allowing something : toleration
Most people in today's culture expect you to agree with their beliefs or lifestyle choices and if you don't then you're automatically intolerant. Tolerance is, in fact, holding onto your own while allowing others to hold onto theirs. While I believe what the Bible has to say about sexuality, I am not going to tell an unbeliever, who chooses to live an unbiblicial lifestyle, that they absolutely, positively must follow the Bible.
God holds his children to a higher standard than the unbelievers. I do believe God's grace is enough regardless of our pet sins, provided we seek and accept His easily found grace. This is what makes us His children; believing and accepting His grace.
I am going to say something here that is going to be very unpopular. My God is intolerant. He is intolerant to sin and He is absolutely intolerant to the worship of other gods. My God is a jealous God. He wants our worship, He wants our love and He wants our devotion. God also knew from the beginning that we are all screw-ups. He gave us laws to by which to live and we broke every single one. If we didn't break them by deed then we broke them by thought. To those of you who may be reading this and don't understand what I just wrote, let me clarify. If you are married and have never slept around on your spouse, but you have fantasized about someone to whom you are not married, then you, my friend, are guilty of adultery in the eyes of God. If you hate someone then in God's eyes you are guilty of murder. If you love anything more than God then you are guilty of idolatry. If you have entertained the thoughts of anything that goes against a pure and holy God then you are guilty of that sin. If that sounds harsh, that's because it is harsh. God is intolerant of sin. If a price isn't paid for that sin then we are doomed for judgement and hell. Thankfully, God provided a way out of that judgement through Jesus. I praise God for that everyday.
2 Be completely humble and gentle; be patient, bearing with one another in love. 3 Make every effort to keep the unity of the Spirit through the bond of peace. 4 There is one body and one Spirit, just as you were called to one hope when you were called; 5 one Lord, one faith, one baptism; 6 one God and Father of all, who is over all and through all and in all.