The folks who organized March of Peace and Unity against the border wall explain the how people at the Border think:
We of the border are one community. We are all affected when our neighbors are displaced from their homes, are all affected by waves of violence, by unemployment and anti-immigrant measures. As the borderlands experience a difficult time, we cannot be passive and simply hope for change. We cannot allow our community to be parted and so it is for ourselves and our future that we must stand together in an act of solidarity.
As the border wall cuts the land, it cuts the communities of the border and tries to create differences among them. This wall, imposed upon us by those who do not live here, is said to be a form of “security” but there can be no security when division and hate are created.
It’s time that we mobilize to stop the building of the wall.
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The American Indian Religious Freedom Act (and other laws) should prevent this assault on their religion and culture. But the Real ID Act allowed Department of Homeland Security Secretary Chertoff to brush aside any law that might slow construction of the border wall. On April 1, 2008 he waived 36 federal laws.

The Tiguas are challenging the constitutionality of the Real ID Act’s waiver provision, alleging that giving an unelected administration appointee the power to waive laws passed by Congress and signed by the President (for the express purpose of subverting the judiciary) is a violation of the separation of powers enshrined in the U.S. Constitution. (They are joined in this by El Paso County, the El Paso County Water Improvement District No. 1, the Hudspeth County Conservation and Reclamation District No. 1, Galeria 409, The Frontera Audubon Society, the Friends of the Wildlife Corridor, and the Friends of Laguna Atascosa National Wildlife Refuge!!!!)
The wide spectrum of plaintiffs just cited points to the broad range of negative impacts the wall will have. The Rio Grande is important for the survival of plant, animal, and human communities. The Rio Bosque Wetlands Park, for instance, protests that, “A fence would limit the ability of native terrestrial species to move...It would limit genetic exchange and would fragment populations that are currently connected.” As habitat is fragmented and access to the river is denied, animals, particularly those that are listed as federally threatened or endangered, may not survive.
(Info on Tohono O'Odham thanks to No Border Wall blog)
August 31: Day 5 of the March for Peace and Unity against the Border Wall
I guess that's enough reasons for now. NO BORDER WALL! Here's what's happening in El Paso. Today is the grand finale:
Depart @ 8am from Socorro to Ysleta del Sur Pueblo arriving at 9-930am. Community event from 930-11am.
From Ysleta, there will be a caravan on the border highway that heads to Anapra/Sunland Park area where the border mass has been held in the past. Close to Ardovinos Desert Crossing restaurant. Caravan expected to arrive @1pm.
Closing event will take place there w/ people from Mexico joining for a Bi-National act of protest.