The creator of this is erroneously calling chemtrails, persistent contrails.

There are:

Contrails - disappear almost immediately.

Persistent Contrails - long lasting contrails produced in very wet and/or cold environments.

Chemtrails - Persistent trails that occur even in hot dry environments.
That occur even when there are not any natural clouds in the sky.
That form cross patterns, square patterns, circle patterns, parallel lines, dash lines.
That (at least in my area) are only formed by KC-135's exclusively.

FYI, the KC-135 is the Air Force refueler.