This is not an meaningful argument. "Irreducible Complexity" is a new phrase invented to replace "I don't know". You cannot make any assertion from a null premise i.e. this does NOT support Design. The only valid assertion that can be made is that we do not know what process made a particular molecular construction. Note that all these things are chemically possible, but our technology still isn't all that hot at reverse engineering complex chemical systems (though it gets better every day).
Irreducible Complexity is just a restatement of the "God in the Gaps" argument, not a technical one. As history has shown, humans are pretty horrible judges of what is and isn't possible, so it is generally best to reserve judgment until we actually have the facts.
While you’re waiting, take the time to become Biblically literate. None of us knows everything or is right about everything. But we have a rich history of scientists who took the time to study the scriptures, despite their colleague’s disparagement of the endeavor.
Thank you for your thoughtful responses.