There is a famous saying that goes: “Hate the sin, love the sinner.” The Church is very welcoming of all sinners, because we are all sinners. But the Church has a duty to teach against sin, be it greed, lust, pride, or in the cases you cited, having sex outside of the bounds of Holy Matrimony.
No one is asking you to. But if you accept the Bible and Tradition, you will realize that your Christian conscience should be formed by these things. We cannot overlook passages such as Romans 1, the Genesis destruction of Sodom and Gomorrah, and other Biblical passages condemning the sins of practicing homosexuality or any other sex outside of marriage.
The Anglican Church was founded in the 16th century because the English King, Henry VIII, was sad that he could not get an annulment. (Died, beheaded, died, died, beheaded, survived I believe the rhyme goes for the fates of his six wives.)
Anybody can be a blind follower no matter where they are. If you want an example of critical church thinkers, look at St. Thomas Aquinas and St. Augustine. The Doctors of the Church were people who did a lot of thinking and wrote on Catholicism. People like G.K. Chesterton and J.R.R. Tolkien did too.
It is sad that people only give lip service to the Church. But what is equally sad is those who pick and choose what they like from the Gospels. What is extreme rightism? Is it stating what the Bible and Tradition state? Contraception implies that conception is a mistake, a broken system that needs fixing. God forming you in your womb can never be a mistake.
You will also notice as an Episcopalian that you are in a church that is in the midst of a huge riff over the ordination of a practicing gay bishop. As of right now, episcopalian parishes are joining more traditional (and dare I say, Catholic-like?) dioceses.
Secularism is to blame for that. Catholicism and Christianity as a whole for that matter is designed to challenge the world we live in. Jesus was a radical. So are we. The problem is, sticking to morals is very unpopular in the Western world. Rather, it is more popular to give lip service to God, referring to him in vague, “inclusive” worship services than present the true sacrifice of the Mass and the Eucharist. It is quite popular to forget God and shun His Word in favor of secular inclusiveness, confusing loving the sinner with loving the sin. However, the Church is growing in the East and in Africa. Maybe someday soon these places will be the new centers of Catholic thought, replacing cities such as Loyola in Europe.
The word orthodox means " adhering to the accepted or traditional and established faith, especially in religion". Is that an insult? To adhere to the tenets of a religion which Christ himself built? I take it rather as a compliment.
Ad maiorem Dei gloriam.