Linux very definitely does not have a single ideology. There is no single entity setting the goals for Linux. Linus Torvalds alone can't do it, RedHat or Suse alone can't do it, the various commercial development centers run by companies such as Oracle, IBM, HP, ... can't do it.
Furthermore, to claim that "Linux wants to become the next Windows" is silly. Today, Linux has 100% market share on supercomputers (every single one on the Top500 list). Windows never had that, nor did any one one OS before Linux. On the other extreme, Linux has a very high market share (probably 70%) on small embedded systems that are used for IoT and industrial control; matter-of-fact, running anything other than Linux on a small device like a Raspberry Pi or Beaglebone is outright difficult (it's doable, I ran FreeBSD on a Pi for a few weeks, but gave up). Again, this is a market where Linux is cleaning up fragmentation.
In the middle, on the desktop (which today is mostly laptops), the market share of Linux is abysmally small, about 3% or so; the bulk goes to Windows, with roughly 10% being MacOS. I think on desktops, *BSD is barely even measurable, about 10 or 100 times smaller than Linux, fraction of a percent. Linux has been technically capable of taking over the desktop market for a long time now: I started running Xwindows on Linux on a 386-40 in about 1995, when installing X meant an extra 30 floppies of the SLS distribution. It has been over 20 years, and the market share of Linux on the desktop can still be counted on the fingers of one hand, even if you work in the sawmill. The prediction that Linux will become the next Windows seems far off.