No, we don't have to change our government

But we DO have to change the personnel who are currently RUNNING the government.

Evidently, there's a lot of people out there who cannot distinguish between the Constitution and the people who are in service to it.

Everybody who is an officer of the Constitution must take an oath to support and defend it.  No other loyalties, including political loyalties are LEGAL.  Therefore, anybody who puts their personal loyalties ahead of the Constitution is in violation of it and must be removed from office.

Thus, the Constitution isn't at fault.  What's at fault are the people who are (purportedly) in service to it and won't remain faithful to it.

There are LEGAL remedies under this Constitution, but nobody hardly anybody seems interested in them.  One of them, long advocated on this blog, includes an Article V convention.  The objection is that it may become a runaway convention, but what do you do about a runaway government officialdom?

An Article V gives the states the power to discipline the Federal government.  It's useless if it is never employed.

Update:

The text of the Constitution that supports what I wrote.

1. With respect to oaths:  Article VI:  "The Senators and Representatives before mentioned, and the Members of the several State Legislatures, and all executive and judicial Officers, both of the United States and of the several States, shall be bound by Oath or Affirmation, to support this Constitution; but no religious Test shall ever be required as a Qualification to any Office or public Trust under the United States."
2. With respect to an Article V convention:  Article V: "The Congress, whenever two thirds of both Houses shall deem it necessary, shall propose Amendments to this Constitution, or, on the Application of the Legislatures of two thirds of the several States, shall call a Convention for proposing Amendments, which, in either Case, shall be valid to all Intents and Purposes, as Part of this Constitution, when ratified by the Legislatures of three fourths of the several States, or by Conventions in three fourths thereof, as the one or the other Mode of Ratification may be proposed by the Congress; Provided that no Amendment which may be made prior to the Year One thousand eight hundred and eight shall in any Manner affect the first and fourth Clauses in the Ninth Section of the first Article; and that no State, without its Consent, shall be deprived of its equal Suffrage in the Senate.

Therefore, a remedy exists.  The big question is if the people and its leaders are interested enough to do something about the situation.

A revolution is ridiculous.