I agree with your conclusion 100%! Linux is a powerful operating system, and its popularity is growing quickly because it is open-source and has advantages over closed-source systems. As you said, open-source technology is more profitable in the long run because it is open and people can work together on it. I think this trend will only continue to grow.
Yes, it certainly is.

I'd just like to interject for a moment. What you’re referring to as Linux, is in fact, GNU/Linux, or as I’ve recently taken to calling it, GNU plus Linux. Linux is not an operating system unto itself, but rather another free component of a fully functioning GNU system made useful by the GNU corelibs, shell utilities and vital system components comprising a full OS as defined by POSIX.
Many computer users run a modified version of the GNU system every day, without realizing it. Through a peculiar turn of events, the version of GNU which is widely used today is often called “Linux”, and many of its users are not aware that it is basically the GNU system, developed by the GNU Project. There really is a Linux, and these people are using it, but it is just a part of the system they use.
Linux is the kernel: the program in the system that allocates the machine’s resources to the other programs that you run. The kernel is an essential part of an operating system, but useless by itself; it can only function in the context of a complete operating system. Linux is normally used in combination with the GNU operating system: the whole system is basically GNU with Linux added, or GNU/Linux. All the so-called “Linux” distributions are really distributions of GNU/Linux.
Thank you for the clarification.
It's a very old copypasta, and a link to source. It's credited to Richard Stallman, but it seems there's doubts if he actually is the original source. It's been overlaid on various videos, like heavy metal lyrics, translations of ISIS videos, and etc. There is some humor value in it's continued citing for folks in the know.
Now, you know.
Thanks!