No, he doesn't. Isa 7:14 fails on several levels.
1- It's not even Messianic. You can't find a single Jewish scholar or rabbi - or any credible list of Messianic attributes from the Jewish experts themselves that think it is. Why? Because
2- It doesn't say anything about a virgin birth. If Isaiah was talking about a virgin giving birth, he would have used the Hebrew word for virgin - bethulah, the way he did over and over again elsewhere. The way every OT author used the word. Instead, he uses the word for a 'young woman' - almah.
3- Anyone with an IQ over 12 that has actually read the story knows that it has nothing to do with a virgin birth. It plainly tells the story of Isaiah letting King Ahaz know that before this child named Immanuel reaches a certain age of understanding, god will vanquish all of the Kinds enemies.
4- Guess what - Isaiah's prophesy FAILED. Ahaz got his ass kicked by his enemies.
These facts are well known by both Jewish, and in Truth, Christian scholars. But your gospel authors were so desperate to create a story that would appeal to their pagan marks - knowing they were ignorant of OT scripture - that they fraudulently reinvented it as Messianic prophesy and squeezed Jesus into it. That Christians are completely ignorant of this fraud is an embarrassment. But here we are, with 2 billion victims - lied to repeatedly by their church - still tithing to this multi trillion dollar scam.
I often have Christians ask me "Why are you so angry? Why do you hate god so much?"
The answer is that Christians confuse anger and hate with the profound sadness we feel for your terrible loss. You have lost your willingness and ability to Reason. You have abrogated doing the honest work of studying the bible for comprehension to the clergy that makes their living off of your blind credulity. It makes us incredibly sad to know that you are the ones that need saving. But some of us are still willing to try. All I can do is speak Truth to power.