Enhancement mode JFET

Replace JFET with "silicon JFET" and I would agree, at least for standard processes. For wide band gap semiconductors, discrete power JFETs with Vp>0 are commercially available.

These devices are allowing a much wider positive Vgs range, and the transconductance is much improved by the high carrier mobility in such semiconductors (like SiC), so no huge device area is required.