It becomes really tiring. Why should we have to be on the defensive? For crying out loud, we are the original Church! I should be asking them why they don't venerate Ikons or don't worship liturgically! The worst are Mormons and Evangelical Protestants. Well, actually the Evangelical Protestants. I consider Mormonism to be a strange Evangelical offshoot of Protestantism.
I think the problem is that these Churches are so casual and modern that people immediately judge any liturgical Church as being evil or polluted by the 'traditions of man', which, I find rather strange. How can you accuse us of being weird when you have Pentecostals rolling on the floor speaking gibberish like they are schizophrenic or something?
I notice that ironically when it comes to theology, people are more open to Orthodoxy about these elements then they are about the externals. Shouldn't it be the other way around? Shouldn't they be less concerned about the externals and more so about the theology? But from what I have observed, they aren't. Other than Sola Scripture, most American Evangelical Christians don't give a heck about theology and will listen to the Orthodox perspective. Sola Scriptura is pretty much the only theological position that they will not abandon.
I've noticed that if I discuss Orthodox theology with Evangelicals before precisely explaining to them that I am Orthodox, they seem fascinated by it and we do not run into many problems until it comes to Sola Scriptura. They're not even as dogmatic about 'faith-alone' salvation anymore from what I have observed. But, the moment they find out I am Orthodox and see that it is liturgical, they immediately go on the offensive and see Orthodoxy as a strange cult that 'worships idols' and makes us act liturgical in Church.
This is not just with Orthodoxy. Every liturgical Church suffers from this no matter what their theology is like. Other than Sola Scriptura and Faith Alone salvation, Protestantism is much more similar to Roman Catholicism than they would like to admit. Except, America has become so anti-Roman Catholic that people immediately hate the Roman Catholic Church because of the liturgical elements of worship. Hell, I've even met Protestants that see Lutheranism as being evil because it is semi-liturgical even though they practically have the same theology and they are the ones who started Protestantism!
Only non-liturgical Christians give me problems about my Orthodoxy, like the standard American Evangelical Protestant/Baptist, whereas I have never had any problems with any liturgical type of Christian whether they were Roman Catholic, Lutheran or Anglican/Episcopian. In fact, many of them seem to be even closer to me the moment I tell them that I am Orthodox. It is like they find it more comforting knowing that they are around another liturgical Christian and don't have to worry about having their religion bashed like they would by a non-liturgical Christian. Heck, in many instances I find myself in the presence of both Roman Catholics and Lutherans and all of us are laughing at contemporary, non-liturgical forms of Christianity. We're all a minority so we all get along pretty well.
The only thing that sometimes bothers me about other liturgical Christians is the false Ecumenism I see among some Roman Catholics. My best friend's father being an example. We love to laugh at Protestantism together and bash Reformed theology and practices (rudely in front of his Reformed daughter) but then he also goes on to say that me and him are the same and that EOs and RCs are really no different at all and that we could worship together and take Communion together. And the entire time I am thinking in my head that while we are more similar with each other than we are Protestantism, there are still some significant issues that need to be addressed before we are really 'the same' and can take Communion together.