On the one hand, autoindustrialism is one of those concepts that makes the Republic a mite… twitchy… given their attitudes towards a variety of technologies.
And on the same hand, in the above comments are the reasons why doing this even once without (a) leaving a trail pointing back to you that can be followed by anyone equipped with eyeballs, and (b) being caught at it by rather obvious changes in the astronomy of the target star is extremely impractical, never mind doing it more than once.
And further on the same hand is that a convincing frame job requires at least a vaguely plausible motive.
And even further on that hand is that the Republic, despite its sundry issues, is not in fact run by psychotic mass-murderers.
But even leaving aside those things, the chief problem with such a plan is that it is a plan basically isomorphic to China, say, or France, or Australia, in the middle of the Cold War deciding that what they really ought to do is frame one of the superpowers for launching a massive nuclear first-strike on the grounds that after triggering Armageddon, they can sit back and relax in the assurance that they’ll come out ahead and the bad consequences will only happen to other people.
As such, any Republic admirals likely to come up with such a plan are transferred without delay to St. Dymphna’s Home for the Dangerously Deranged and kept on a strict diet of antipsychotic drugs and severely restricted visitor permissions for the rest of their lives.