"As Christians, we must seek to be unified as one people.
Politics do not apply to the Gospel." -- Christian Associates @can2009
While the above statement is true, I believe the converse is true as well; the Gospel DOES APPLY to personal politics - especially when personal politics go against the Gospel (viz., they are not Christ-centered).
Politics that not only condone, but safeguard murder (abortion) and sexual immorality (demanding that immorality and immoral groups should be legalized and protected, such as sodomy, et al.) have nothing to do with the Gospel.
Ro 13:12-14 — the night is far gone, the day is at hand. Let us then cast off the works of darkness and put on the armor of light; 13 let us conduct ourselves becomingly as in the day, not in reveling and drunkenness, not in debauchery and licentiousness, not in quarreling and jealousy. 14 But put on the Lord Jesus Christ, and make no provision for the flesh, to gratify its desires.Eph 4:17-20 — Now this I affirm and testify in the Lord, that you must no longer live as the Gentiles do, in the futility of their minds; 18 they are darkened in their understanding, alienated from the life of God because of the ignorance that is in them, due to their hardness of heart; 19 they have become callous and have given themselves up to licentiousness, greedy to practice every kind of uncleanness. 20 You did not so learn Christ! --Eph 5:8-14 — for once you were darkness, but now you are light in the Lord; walk as children of light 9 (for the fruit of light is found in all that is good and right and true), 10 and try to learn what is pleasing to the Lord. 11 Take no part in the unfruitful works of darkness, but instead expose them. 12 For it is a shame even to speak of the things that they do in secret; 13 but when anything is exposed by the light it becomes visible, for anything that becomes visible is light. 14 Therefore it is said, "Awake, O sleeper, and arise from the dead, and Christ shall give you light."Php 2:15 — that you may be blameless and innocent, children of God without blemish in the midst of a crooked and perverse generation, among whom you shine as lights in the world,1Pe 2:9 — But you are a chosen race, a royal priesthood, a holy nation, God's own people, that you may declare the wonderful deeds of him who called you out of darkness into his marvelous light.1Pe 4:2-4 — so as to live for the rest of the time in the flesh no longer by human passions but by the will of God. 3 Let the time that is past suffice for doing what the Gentiles like to do, living in licentiousness, passions, drunkenness, revels, carousing, and lawless idolatry. 4 They are surprised that you do not now join them in the same wild profligacy, and they abuse you;1Jn 1:5-7 — This is the message we have heard from him and proclaim to you, that God is light and in him is no darkness at all. 6 If we say we have fellowship with him while we walk in darkness, we lie and do not live according to the truth; 7 but if we walk in the light, as he is in the light, we have fellowship with one another, and the blood of Jesus his Son cleanses us from all sin.