Using X11?

I'm having trouble with X windows. I have 10.9.5, and I have downloaded X from https://www.xquartz.org/releases/XQuartz-2.7.11.html.

I not only logged out, I restarted my computer.

I still cannot get it to start up. Running xinit gave this in the log:
Jan  1 19:39:57 keybounceMBP org.macosforge.xquartz.X11.stub[28817]: launch_msg("CheckIn") IPC failure: Operation not permitted
Jan  1 19:39:57 keybounceMBP org.macosforge.xquartz.X11.stub[28817]: Xquartz: Unable to locate waiting server: org.macosforge.xquartz.X11
Jan  1 19:39:57 keybounceMBP org.macosforge.xquartz.X11.stub[28818]: Xquartz: Starting X server: /Applications/Utilities/XQuartz.app/Contents/MacOS/X11 --listenonly
Jan  1 19:40:17 keybounceMBP org.macosforge.xquartz.X11.stub[28817]: Xquartz: bootstrap_look_up(): Unknown service name

And xinit gave me this output:
waiting for X server to begin accepting connections .
..
..
..
..
..
..
..
..
.
xinit: giving up
xinit: unable to connect to X server: Operation timed out
xinit: server error
michael$ echo $DISPLAY
/tmp/launch-SNmCyz/org.macosforge.xquartz:0
michael$ which xinit
/opt/X11/bin/xinit

I am in need of the X11 from xquartz, and not the one from macports, because I have an old commercial program I'm trying to run that is linked against the stuff in /opt/X11 specifically.

How do I make this work?
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This message was composed with the aid of a laptop cat, and no mouse