How to focus only on specific Safari window

I very often like to open current tab with a youtube video as separate window and put it on an external screen somewhere. I am not on Sierra and don't have PIP nor do I like using Helium alternative.

I have a macro that brings Safari into focus :

What I dislike though, is that very often, it would bring focus to my second window where the video is playing when I activate the macro from some other app. How can I extend this macro so that it would open into my 'other' window which contains more tabs.

Some solutions I can see is checking the amount of tabs, and always going to the window that has more tabs but I am wary that it will decrease performance. I use this macro of switching to 'Safari' more than 100 times an hour probably. Is there any simple solution I can use for this?

Thank you for any help.